Add CtrlP style to Bubblegum

Referencing to the Molokai Airline theme, I appended a style for CtrlP to the Bubblegum theme. 

![1416488460](https://cloud.githubusercontent.com/assets/1671603/5124923/e4fc2bb2-70f8-11e4-9a45-6c730d742f50.png)